Home / 27,816.50-38,404.30-19,315.91

Finding the Fourth Proportional to 27,816.50, 38,404.30 and 19,315.91

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Solution

The fourth proportional to 27,816.50, 38,404.30 and 19,315.91 is: 26,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816.50 : 38,404.30 = 19,315.91 : x
  2. Step 2: Convert to fraction form
    27,816.50/38,404.30 = 19,315.91/x
  3. Step 3: Cross multiply
    27,816.50x = 38,404.30 × 19,315.91
  4. Step 4: Simplify right side
    27,816.50x = 741,814,050.13
  5. Step 5: Solve for x
    x = 741,814,050.13/27,816.50
  6. Step 6: Final answer
    x = 26,668.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.